by ERIKSON, J. ALDEN, CHRISTENSON, ROGER MORRIS, DOWBENKO, ROSTYSLAW, SCHILLINGER, WILLIAM JOSEPH
Year of Publication 26.03.1986

by ROGER LOUIS SCRIVEN, ROGER MORRIS CHRISTENSON, JOSEPH EDMUND PLASYNSKI, JOSEPH THEODORE VALKO
Year of Publication 18.03.1986

by J. ALDEN ERIKSON, ROGER MORRIS CHRISTENSON, ROSTYSLAW DOWBENKO, WILLIAM JOSEPH SCHILLINGER
Year of Publication 20.02.1986

by SCHIMMEL KARL FRANCIS, DOWBENKO ROSTYSLAW, SEINER JEROME ALLAN, CHRISTENSON ROGER MORRIS
Year of Publication 15.02.1986

by ROGER LOUIS SCRIVEN, ROGER MORRIS CHRISTENSON, JOSEPH EDMUND PLASYNSKI, JOSEPH THEODORE VALKO
Year of Publication 09.01.1986

by CHRISTENSON, ROGER MORRIS, PLASYNSKI, JOSEPH EDMUND, VALKO, JOSEPH THEODORE, SCRIVEN, ROGER LOUIS
Year of Publication 08.01.1986

by KARL FRANCIS SCHIMMEL, JEROME ALLAN SEINER, ROSTYSLAW DOWBENKO ET ROGER MORRIS CHRISTENSON
Year of Publication 20.12.1985

by ROGER LOUIS SCRIVEN, ROGER MORRIS CHRISTENSON, MARK WILLIAM JOHNSON, JEFFREY GEORGE KOREN, ROBERT DAVID JERABEK
Year of Publication 31.10.1985

by ROGER LOUIS SCRIVEN, ROGER MORRIS CHRISTENSON, MARK WILLIAM JOHNSON, JEFFREY GEORGE KOREN, ROBERT DAVID JERABEK
Year of Publication 24.04.1985

by CHRISTENSON, ROGER MORRIS, JOHNSON, MARK WILLIAM, JERABEK, ROBERT DAVID, SCRIVEN, ROGER LOUIS, KOREN, JEFFREY GEORGE
Year of Publication 02.05.1984

by ROGER LOUIS SCRIVEN, ROGER MORRIS CHRISTENSON, MARK WILLIAM JOHNSON, JEFFREY GEORGE KOREN, ROBERT DAVID JERABEK
Year of Publication 05.04.1984

by DEBRA LYNN SINGER, GREGORY JAMES MCCOLLUM, ROSTYSLAW DOWBENKO ET ROGER MORRIS CHRISTENSON
Year of Publication 30.03.1984

by KUMAR DAS,SURYYA, MORRIS CHRISTENSON,ROGER, ALBERT WELSH,DAVID, MARTIN KANIA,CHARLES, DOWBENKO,ROSTYSLAW
Year of Publication 14.04.1983

by KARL FRANCIS SCHIMMEL, ROGER MORRIS CHRISTENSON, ROSTYSLAW DOWBENKO, JEROME ALLAN SEINER
Year of Publication 14.04.1983

by KARL FRANCIS SCHIMMEL, ROGER MORRIS CHRISTENSON, ROSTYSLAW DOWBENKO, JEROME ALLAN SEINER
Year of Publication 14.04.1983

by KARL FRANCIS SCHIMMEL, ROGER MORRIS CHRISTENSON, ROSTYSLAW DOWBENKO, JEROME ALLAN SEINER
Year of Publication 14.04.1983

by ROGER MORRIS CHRISTENSON, DAVID ALBERT WELSH, ROSTYSLAW DOWBENKO, SURYYA KUMAR DAS, CHARLES MARTIN KANIA
Year of Publication 24.09.1982

by CHRISTENSON, ROGER MORRIS, GIBSONIA, PA., US, DOWBENKO, ROSTYSLAW
Year of Publication 22.07.1982

by KARL FRANCIS SCHIMMEL, ROGER MORRIS CHRISTENSON, ROSTYSLAW DOWBENKO, JEROME ALLAN SEINER
Year of Publication 22.07.1982

by KARL FRANCIS SCHIMMEL, ROGER MORRIS CHRISTENSON, ROSTYSLAW DOWBENKO, JEROME ALLAN SEINER
Year of Publication 15.07.1982